A jetski.
Correct. A big triangle on top of an arrow.
No, try again.
Remove all selections.
A jetski.
Correct. A wide wrench head.
Correct. A kettle on top of a triangle base.
This shape is a large irregular object balanced on top of a triangle on its point.

Outcome: successful
Speaker comments: we got there in the end, but the bot forced me to completely reset at one point by picking wrong answers and refusing to remove them